Need help with Oil Powered Boiler, National US Radiator. Dad has an old 27 series All Fuel Boiler mde in Johnstown, PA, model no. 6-27. And is it in good running condition except the leak in the circulator gearbox. Water is leaking out of the motor circulator gears and into the lubricating fitting between the motor and the piping.
What needs to be done to repair it? Change a gasket? Help please.